package cn.itcast.mapper;

import cn.itcast.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.apache.ibatis.annotations.Update;

import java.util.List;

public interface IShoppingCartMapper {

    @Insert("insert into shopping_cart values(null,#{name},#{image},#{userId},#{dishId},#{setmealId},#{dishFlavor},#{number},#{amount},#{createTime})")
    void add(ShoppingCart shoppingCart);
    ShoppingCart findByDishIdOrSetMealId(ShoppingCart shoppingCart);


     @Update("update shopping_cart set `number` =#{number} where id=#{id}")
    void updateNum(ShoppingCart shoppingCart);

        @Delete("delete  from shopping_cart where id=#{id} ")
    void remove(ShoppingCart shoppingCart);

    /**
     * 根据userId查询ShoppingCart
     * @param userId
     * @return
     */
    @Select("select * from shopping_cart where user_id=#{userId}")
    List<ShoppingCart> list(Long userId);


    @Delete("delete from shopping_cart where user_id=#{userId}")
    void clean(Long userId);
}
